cookxon



Dec. 29, 1925- T. J. COOKiON EXHAUST HEAD Filed March 16 1923 2 Sheets-Sheet Dec. 29 1925- T. J. COOKSON EXHAUST HEAD Filed March 16 1923 2 Sheets-Sheet 2 gwvvntoc www mew/W Patented Dec. 29, 1925.

UNITED STATEEZB THOMAS J. CGOKSON, F CLEVELAND, Oi-IIO, ASSIGNOB. TO THE FULTON FOUNDRY ANS MACHINE COMPANY, OF CLEVELAND, QHIO, A CORPORATION 6F OHIO.

EXHAUST HEAD.

Application filed March 16, 1923.

To all 10 7mm it may concern Be it known that I, THOMAS J. OOOKSON, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Exhaust Heads, of which the following is a specification.

This invention relates to exhaust heads such as are used at the discharge end of pipes for venting to the atmosphere steam or any other waste gas or liquid carrying fluid or other impurities, such as oil, grease or the like, which might stain or injure the ad acent roof or other surface through which the pipe projects.

The object of the invention is to provide an exhaust head which is so arranged as to quietly lead the exhaust gases into the atmos phere without the liabillty of producing back pressure, which shields the exhaust pipe from the entrance of ra1n, snow'or the like, and which traps and drains away all liquid products of condensation or deposition, and which exhaust head is of simple construction, can be manufactured and mstalled at low cost and is not likely to get out of order in service.

Further objects of the invention are n part obvious and in part will appear more 1n detail hereinafter.

In the drawings, Fig. 1 represents a sectional elevation on the line 1 1, Flg. 2, through one embodiment of the invention; Fig. 2 is a plan view thereof; Flg. 3 1s a sectional elevation, corresponding to Fig. 1 the section being taken on the line 33 Fig. 4, illustrating another form of invention; and Fig. 4 is a plan view thereof.

Referring first to Figs. 1 and 2, the exhaust head illustrated comprises a suitable base or body portion suitably designed for connection to the exhaust pipe, being 1llustrated as provided with athreaded boss 1 to be screwed to said pipe. Above said boss the body portion is enlarged to form acupshaped hollow outer shell 2 and an inner tubular up-standing core or nozzle 3 forming between them an annular chamber or recess 4 in which the liquid, such as condensed steam, and deposited oil or other substances are collected and from which they are drained away through the outlet 5 by a suitable conduit 6 leading to the sewer, a gutter or drain pipe, or other discharge point. The outer shell 2 is suitably formed for attach- Serial No. 625,603.

ment thereto of a cap or cover 7, the drawing showing both the shell and cover as provided with meeting portions 8, which can be provided with machined surfaces or may be sealed by a gasket, as at 9, and also provided with outwardly projecting perforated ears 10 for securing bolts 11. Said cap is also provided with a series of circumferentially spaced ports 12, four being shown. and which ports are spaced between a series of radially extending upwardly projecting ribs 13, which reinforce the cap structure and form firm bonds connecting its outer peripheral portion, which rests on the shell 2, to its central portion 14 spaced therefrom by the ports. The central portion 14 has its lower face which is exposed to the central passage 15 in core 3 and the chamber 4 arched upwardly and then downwardly along a surface formed by a depending conical portion 16 and an inner annular wall or skirt 17. The depending cone 16 is in the axis of the head and lies directly over the passage 15, while the annular skirt 17 is located over the annular chamber 4 and between the walls thereof, to wit, the shell 2 and core 3. Preferably also the skirt 17 extends downwardly slightly below the level of the upper end of core 3, which core is of material height projecting nearly to the top of shell 2. Furthermore, the cap is also provided with a second or outer annular skirt 18 which in part forms the outer boundary of the several ports 12 and which is spaced inwardly a slight distance from the shell 2 to form an annular recess or cavity 19. This skirt 18 extends downwardly below the joint between the cap and base and preferably terminates at a level slightly above the lower edge of skirt 17.

With this arrangement gases or fluids to be discharged to the atmosphere from the conduit to which the head is connected are led upwardly through the channel 15 and are then turned radially outwardly and distributed in all directions by the surface of cone 16. They are then deflected downwardly by the skirt 1'? into the chamber 4 and then flow upwardly to the atmosphere to the several ports 12. The increasing size of the passages and ports gradually reduces the velocity of flow of the gases and permits liquids, such as oil or the like, to be deposited and collected either on the surfaces of the cap and body parts, and thereby drain into the chamber 4:, or to be-deposited directly in the bottom of chamber 4. The relation between the several walls or skirts 3, 17 and 18 is such that no direct path to the atmosphere is termed but the gases travel over a circuitous or tortuous route, as indicated by the arrows. Annular channel 19 forms a trap to prevent any liquids from being swept or carried upwardly along the inner-surface of casing 2 and possibly to the outside of the exhaust head, but such liquids are drained back and flow out through the drain pipe.

Figs. 3 and l show a modification useful for larger installations or in cases where the exhaust head cannot be connected by a threaded coupling to the exhaust pipe. As shown the main body or shell 2 is provided at its lower end with an annular flange 20 to be bolted or otherwise secured to a flange on the exhaust pipe or a coupling or collar surrounding the same or attached thereto. The body is also formed in two parts, to wit, an inner core section having the core portion 3 provided with an annular flange 21 to which is bolted or otherwise connected the outer shell member 2*. These parts need not have a machined lit with each other but the joint between them may be sealed or caulked with lead or any other suitable material, as indicated at 2:2. The outlet connection 5 in this case is at an angle to the central axis instead of parallel therewith. The cap is in general formed in the same manner as the one first described but is divided by five in stead of tour radially extending ribs 13 with a. consequent increase in the number of final exhaust ports 12*.

lVith both forms of the invention the gases or fluids to be exhausted into the atmosphere issue quietly into the exhaust head without whirl. Water or any other liquid or substance which might otherwise condense or be deposited and which might stain or injure the roof or other adjacent surface is quietly and readily collected and is drained to the sewer through a special or separate drain pipe.

@ther advantages of the invention will be apparent to those skilled in the art to which it relates. I

What I claim is 1. A head for exhaust pipes, comprising a hollow shell adapted for connection to said pipe and having a hollow central core portion, a cap or cover for said shell provided with an arched under surface terminating in an inner annular skirt over said chamber, a series of outlet ports in said cap or cover located outwardly beyond the annular skirt thereof, and an outer annular skirt on said cap or cover located outwardly beyond said exhaust ports and extending downwardly toward said annular chamber.

2. A head for exhaust pipes, comprising a hollow shell adapted for connection to said pipe and having a hollow, central core portion, a cap or cover for said shell provided with an arched under surfaceterminating in an inner annular skirt over said chamber, a series of outlet ports in said cap or cover located outwardly beyond the annular skirt thereof, and an outer annular skirt on said cap or cover located outwardly beyond said exhaust ports and extending downwardly toward said annular chamber and lying inwardly from the outer wall of said shell and -forming therewith an annular trapping space.

In testimony whereof I hereby altix my signature.

THOMAS J. COOKSON. 

